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Reference for unit 'System' (#rtl)

pi

Return the value of PI.

Declaration

Source position: mathh.inc line 59

function pi: ValReal;

Description

Pi returns the value of Pi (3.1415926535897932385).

Errors

None.

See also

Cos		Calculate cosine of angle
Sin		Calculate sine of angle

Example

Program Example47;

{ Program to demonstrate the Pi function. }

begin
  Writeln (Pi);         {3.1415926}
  Writeln (Sin(Pi));
end.

Notes

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